using System.Collections.Generic;

namespace SigmaDrawerElement
{
    /// <summary>
    /// 字典辅助类
    /// </summary>
    public class DictionaryHelper
    {
        /// <summary>
        /// 反转字典的 Key Value 组成一个新的字典
        /// </summary>
        /// <typeparam name="TKey">字典 Key 类型</typeparam>
        /// <typeparam name="TValue">字典 Value 类型</typeparam>
        /// <param name="dict">字典</param>
        /// <returns>反转后的新字典</returns>
        public static Dictionary<TValue, TKey> Reverse<TKey, TValue>(Dictionary<TKey, TValue> dict)
        {
            var newDict = new Dictionary<TValue, TKey>();
            foreach (var kv in dict)
            {
                newDict[kv.Value] = kv.Key;
            }

            return newDict;
        }
    }
}